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Sricharan R authored
Now with IOMMU probe deferral, we return -EPROBE_DEFER for masters that are connected to an IOMMU which is not probed yet, but going to get probed, so that we can attach the correct dma_ops. So while trying to defer the probe of the master, check if the of_iommu node that it is connected to is marked in DT as 'status=disabled', then the IOMMU is never is going to get probed. So simply return NULL and let the master work without an IOMMU. Fixes: 7b07cbef ("iommu: of: Handle IOMMU lookup failure with deferred probing or error") Reported-by:
Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by:
Will Deacon <will.deacon@arm.com> Tested-by:
Magnus Damn <magnus.damn@gmail.com> Acked-by:
Will Deacon <will.deacon@arm.com> Signed-off-by:
Sricharan R <sricharan@codeaurora.org> Signed-off-by:
Joerg Roedel <jroedel@suse.de>
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